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14
[1917]
decline was due to a decrease, when a comparison is made with the average
of these years, of 662 cases of Scarlet Fever, of 45 cases of Enteric Fever,
of 57 cases of Erysipelas, and of 4 cases of Puerperal Fever. On the other
hand Diphtheria showed an increase of 16 cases, when compared with the
average.
The above rate of 4'21 per 1,000 of the civil population will be further
increased to 21*16 per 1,000 when the 5,036 cases of Measles notified under
the " Public Health (Measles and German Measles) Regulations, 1915," are
included.
In London the attack-rate was 412 per 1,000, or 0-01 lower than in
Islington, while in the Encircling Boroughs it was 4T3 or O'OB lower than
here.
Small Pox.—No case was notified in the Borough during the year;
neither was any case known since 1910, when one case occurred.
Scarlet Fever.—478 cases were notified, and they showed a decrease of
662 or 41 per cent, on the average (1,140) of the ten years 1907-16. The
attack-rate was equal to 1.61 per 1,000 of the civil population annually, which
is a decrease of 1.90 per 1,000 on the mean rate (3.51) of the preceding
ten years.
Diphtheria and Membranous Croup were responsible for 561 cases
of illness, and were 16 above the average (545) of the preceding ten years.
The attack-rate was equal to 189 per 1,000 of the civil population annually,
and was 0.21 above the mean rate (1.68) of the decennial period.
In London the attack rate was 1.97 per 1,000, and in the Encircling
Boroughs 1.96.
Enteric Fever was only notified in 23 instances which is 45 below the
average (68) that obtained during the ten years 1907-16. The attack-rate was
0'08 per 1,000 annually, or 0T3 per 1,000 below the mean rate (0.21) of the
last ten years.
In London the rate was 0.11 and in the Encircling Boroughs 0.08 per
1,000 of the civil population.
Typhus Fever.—Nil return.
Continued Fever.—Nil return.
Erysipelas.—173 cases were notified, or 57 below the average (230) of
the preceding ten years, the attack-rate being 0'58 per 1,000 of the civil
population, as compared with 0.56 in London and 0'60 in the Encircling
Boroughs.